Tapp is a surname. Notable people with the surname include:
- Alex Tapp (born 1982), English footballer
- Alistair Tapp (born 1964), English cricketer
- Darryl Tapp (born 1984), American football player
- Gordie Tapp, Canadian singer
- Hannah Tapp (born 1995), American volleyball player
- Ian Tapp, English sound engineer
- Jake Tapp (born 1988), Canadian swimmer
- Jimmy Tapp (1918–2004), Canadian radio personality
- Johnny Tapp (born 1941), Australian racecaller
- Mike Tapp, British politician
- Margaret and Seana Tapp, Australian murder victims
- Nigel Tapp (1904–1991), British Army general
- Paige (Tapp) Sander (born 1995), American volleyball player
Fictional characters:
- David Tapp, character from the Saw franchise